Sea turtles

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A baby turtle heads to the sea in Matzalan, Mexico. Local students released hatchlings into the sea at the Estrella del Mar Turtle Sanctuary. Sherry Shahan/AP/FILE

Staff and volunteers from the Turtle Hospital watch a 200-pound Loggerhead sea turtle, Pal, make its way to deeper water off the Florida Keys on April 22 in Marathon, Fla. The turtle was released on Earth Day after being treated for more than a month for an impacted digestive system. Andy Newman/Florida Keys News Bureau/AP

People check the heartbeats of sea turtles recovering at the Florida Keys-based Turtle Hospital in Marathon, Fla. The Turtle Hospital has treated 178 'cold-stunned' sea turtles from around Florida in January. A return to warmer, normal temperatures provided the opportunity for the release of 40 of the reptiles, but 138 are still convalescing at the facility recovering from the effects of chilly weather in the region. Andy Newman/Florida Keys News Bureau/AFP/Newscom/FILE

A Thai navy sailor collects Hawksbill turtles for their release back to the sea at the Sea Turtle Conservation Center of the Royal Thai Navy in Sattahip, Thailand, on August 13, 2009. Chaiwat Subprasom/Reuters/FILE

At Patok Beach, Albania, biology students carry a sea turtle after attaching an electronic transmitter chip onto its body to locate its movements as part of a study of breeding habits. The turtles, an endangered species, had been caught by fishermen who turned them over to the biologists in September 2009. Arben Celi/Reuters

A rescued green sea turtle, Allison, who has only one flipper, swims with the aid of a fin attached with neoprene at the Sea Turtle Inc., in South Padre Island, Texas, in April 2009. Without the fin, developed at the turtle rescue facility, Allison can only swim in circles. Eric Gay/AP

A green sea turtle is seen in the Red Sea off Egypt. Newscom/FILE

A baby Loggerhead turtle is held by a member of the Broward County Sea Turtle Conservation Program in July 2009 in Lauderdale-by-the-Sea, Fla. The Lauderdale-by-the-Sea Fire Department helped the sea turtle program remove 50 of the babies who had fallen into a storm drain, attracted by the lights of a nearby parking structure. The Florida Atlantic Coast is in the height of the Sea Turtle hatching and nesting season. Only one in 1,000 of the nestlings make it to adulthood. The babies will be released at night when that are less vulnerable to predators. Joe Cavaretta/Sun Sentinel/AP/FILE

An Olive Ridley turtle digs in the sand to lay its eggs on Rushikulya beach in India on March 17. Thousands of Olive Ridley sea turtles come ashore to lay their eggs on the beach. Deshakalyan Chowdhury/AFP/Getty Images/Newscom

Children watch an Olive Ridley turtle returning to the Bay of Bengal sea after laying eggs on Gokhurkuda beach in India on March 18. Biswaranjan Rout/AP

A Hawksbill turtle hatchling crawls beside an egg at a breeding center at the Thousand Islands Marine Park in Pramuka, Indonesia, on April 20. Romeo Gacad/AFP/Newscom

A green turtle swims by in an observation pool in Praia do Forte, Brazil, in January. Matt Boster/Sipa Press/Newscom/FILE

On Friday, Russia's sports ministry denied accusations of state-sponsored doping that implicate more than 1,000 athletes across more than 30 sports in sample swapping, tampering with samples, and taking steroid cocktails designed to evade Olympic testing.